21806950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1333

約数の個数: 48

約数和(自身を含む): 45711360

約数和(自身を除く): 23904410

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 155, 275, 310, 341, 550, 682, 775, 1279, 1550, 1705, 2558, 3410, 6395, 8525, 12790, 14069, 17050, 28138, 31975, 39649, 63950, 70345, 79298, 140690, 198245, 351725, 396490, 436139, 703450, 872278, 991225, 1982450, 2180695, 4361390, 10903475, 21806950]

約数ペア:

[(1, 21806950), (2, 10903475), (5, 4361390), (10, 2180695), (11, 1982450), (22, 991225), (25, 872278), (31, 703450), (50, 436139), (55, 396490), (62, 351725), (110, 198245), (155, 140690), (275, 79298), (310, 70345), (341, 63950), (550, 39649), (682, 31975), (775, 28138), (1279, 17050), (1550, 14069), (1705, 12790), (2558, 8525), (3410, 6395)]